3542471981 has 8 divisors (see below), whose sum is σ = 3553090464. Its totient is φ = 3531867120.

The previous prime is 3542471963. The next prime is 3542471993. The reversal of 3542471981 is 1891742453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3542471981 is a prime.

It is a super-3 number, since 3×3542471981³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3542479981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747686 + ... + 752408.

It is an arithmetic number, because the mean of its divisors is an integer number (444136308).

Almost surely, 2^3542471981 is an apocalyptic number.

It is an amenable number.

3542471981 is a deficient number, since it is larger than the sum of its proper divisors (10618483).

3542471981 is a wasteful number, since it uses less digits than its factorization.

3542471981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811.

The product of its digits is 241920, while the sum is 44.

The square root of 3542471981 is about 59518.6691803505. The cubic root of 3542471981 is about 1524.4112364511.

The spelling of 3542471981 in words is "three billion, five hundred forty-two million, four hundred seventy-one thousand, nine hundred eighty-one".